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"Bingo on fuel" is military aviation slang. It originated with the United States military and carries a specific, official meaning there. Through joint operations and training, it has spread to NATO and other treaty forces, but is not officially recognized.

"Bingo on fuel" means a prebriefed amount of fuel for an aircraft that would allow a safe return to the base of intended landing.

Because it does not mean "low on fuel", we do not use it to say "we are bingo on rice ..." Indeed, (and just as example) depending upon the mission profile, a aircraft may have as much as 40% of its fuel capacity remaining when the "bingo" point is reached --> fuel to reach target = 35%, loiter time on target = 25%, "bingo on fuel", fuel to return = 35%, safety factor = 5%.

If you imbibe in moderation, it might be an apt phrase to say when you pull back your stool and arise to leave. Of course, in my younger days, I was more likely to hear "going to be blatto on beer" or "blotto". I never did understand the derivation of those.

I've never even heard of "bingo on fuel" but it makes sense. I love how we get to learn these things in this forum! The etymology dictionary says that blotto is circa 1905 and comes from blot, to soak up liquid.